Triangle Signature Delta vs Triangle Signature Gamma Comparison

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Triangle Signature Delta

Passive Floor-standing | 35-22k Hz

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Triangle Signature Gamma

Passive Center Channel | 45-22k Hz

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Triangle Signature Delta vs Triangle Signature Gamma Speaker Comparison

In this review, we will be comparing two different types of speakers by Triangle. Triangle Signature Delta is a Floor-standing speaker whereas the Gamma is a Center Channel speaker.

Let's have a brief look at the main features of Triangle Signature Delta and Triangle Signature Gamma first before getting into our more detailed comparison.

Key Specs	Triangle Signature Delta	Triangle Signature Gamma
Brand	Triangle France · founded 1980	Triangle France · founded 1980
Design	3-way	2-way
Tweeter	1" Horn-Loaded	1" Horn-Loaded
Midrange	6.5"	—
Woofer	2 x 6.5" Fibreglass	2 x 6.5" Paper
Frequency response	35-22k Hz	45-22k Hz
Sensitivity	92 dB	90 dB
Impedance	8 ohms	8 ohms
Power range	60-300 watts	up to 90 watts
Weight	33.00kg / 72.6lbs	—
Dimensions (H x W x D)	46-1/16" x 9-3/16" x 14-5/8" 1170.0 x 233.0 x 372.0mm	10-1/4" x 22-15/16" x 15" 260.0 x 582.0 x 381.0mm

Delta and Gamma are members of Triangle's Signature series of speakers. Below you can find the loudspeakers from this series.

Triangle Signature Series History

Model	Body	Frequency	Sensitivity	Impedance	Woofer
Triangle Signature Delta	Floor-standing	35-22k Hz	92 dB	8Ω	2 x 6.5"
Triangle Signature Alpha	Floor-standing	32-22k Hz	92 dB	8Ω	3 x 6.5"
Triangle Signature Theta	Bookshelf	45-20k Hz	90 dB	8Ω	1 x 6.5"
Triangle Signature Gamma	Center Channel	45-22k Hz	90 dB	8Ω	2 x 6.5"

What size room are the Triangle Signature Delta and Triangle Signature Gamma speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment*	Triangle Signature Delta	Triangle Signature Gamma
Near-field	Bad	Poor
Small Room	Poor	Average
Mid-size Room	Average	Good
Large Room	Good	Average
Very Large Room	Average	Poor

(* Approximate Room sizes: Small < 100sq. ft / 9 m², Mid-size: 100-220 sq. ft / 9-20 m², Large 220-400 sq. ft / 20-36 m², Very Large: > 400 sq. ft / 36 m². Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.

Drivers

One of the fundamental differences between these two speakers is that Delta is a 3-way design whereas the Gamma is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.

Triangle Signature Delta

Triangle Signature Gamma

TweeterMidrangeWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver	Triangle Signature Delta	Triangle Signature Gamma
Driver Setup	3-way	2-way
Tweeter	1-inch	1-inch
Midrange	1 x 6.5-inch	-
Woofer	2 x 6.5-inch	2 x 6.5-inch

Delta features a 1" Titanium dome Horn-Loaded Tweeter, a 6.5" Midrange and 2 x 6.5" Fibreglass Woofer with a Crossover frequency at 280Hz and 2750Hz. On the other hand, the Gamma features a 1" Titanium dome Horn-Loaded Tweeter and 2 x 6.5" Paper Woofer with a Crossover frequency at 2500Hz.

Frequency Response

Delta has a frequency range of 35-22k Hz whereas Gamma has a frequency range of 45-22k Hz. With a minimum frequency of 35Hz, the Delta can go significantly deeper on the low side and provide stronger bass compared to the Gamma's min frequency of 45Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

Delta

Gamma

Min

Average

Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

Delta and Gamma have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Delta sensitivity is rated at 92 dB and the Gamma's is at 90 dB. This 2 dB difference makes the Triangle Signature Delta a more sensitive speaker compared to Triangle Signature Gamma, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

Delta

Gamma

Min

Average

Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

Delta can handle a max power of 120 watts RMS, whereas Gamma has a max power handling value of 90 watts RMS, 30 watts less than the Delta.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Amplifier - change this

Distance

Playing as

Triangle Signature Delta

Triangle Signature Gamma

Input Type and Bi-Amping / Bi-Wiring

Delta features Binding post posts which make bi-amping or bi-wiring possible. Gamma has a Binding post which doesn't feature bi-amping/bi-wiring.

Cabinet Type and Port Position

Both Delta and Gamma have front firing ports. front ported speakers offers more flexibility in placement in regards to proximity to walls&surfaces compared to rear ported speakers.

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Triangle Signature Delta's and Triangle Signature Gamma's external dimensions. Triangle Signature Delta has external dimensions of 1170.0 x 233.0 x 372.0mm (46-1/16 x 9-3/16 x 14-5/8inch) whereas Triangle Signature Gamma has external dimensions of 260.0 x 582.0 x 381.0mm (10-1/4 x 22-15/16 x 15inch).

Triangle Signature Delta is 349mm narrower and 9mm less deeper than Triangle Signature Gamma but it is also 910mm taller.

Size, drawn to scale

Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.

One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.

Triangle Signature Gamma needs about 156% more floor or shelf area. Triangle Signature Delta is 910mm taller.

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Triangle Signature Delta is approximately 866.8cm² / 134.4inch² and base area of the Triangle Signature Gamma is approximately 2217.4cm² / 343.7inch². The Delta requires 61% less surface area than the Gamma which gives it a small advantage on placement in tight spaces.

Reasons to choose Triangle Signature Delta over Triangle Signature Gamma

Max Input Power	120 watts vs 90 watts	Handle more power from your amplifier
Driver Setup	3-way vs 2-way	Have a dedicated mid-range driver
Sensitivity	92 dB vs 90 dB	Play louder with same amount of amplification power
Low Frequency Response	35 Hz vs 45 Hz	Generates deeper bass
Base Surface Area	866cm² vs 2217cm²	Takes less floor space

Reasons to choose Triangle Signature Gamma over Triangle Signature Delta

Minimum Impedance	4 ohms vs 3.2 ohms	Very low impedance levels puts more pressure on amplifier
Height	260mm vs 1170mm	Easier to fit in smaller spaces
Price per pair*	2700USD vs 6000USD	costs less (*prices may change depending on the seller, location and time)

Triangle Signature Delta vs Triangle Signature Gamma Specs Table

Detailed comparison of specifications

General	Triangle Signature Delta	Triangle Signature Gamma
Brand	Triangle	Triangle
Speaker Type	Floor-standing speaker	Center channel speaker
Power Range	60-300 watts	up to 90 watts
Sensitivity	92 dB	90 dB
Impedance	8 ohms	8 ohms
Impedance	3.2 ohms	4 ohms
Frequency Response	35-22k Hz	45-22k Hz
Drivers
Woofer Quantity	2	2
Woofer Size	6.5"	6.5"
Woofer Composition	Fibreglass	Paper
Tweeter Size	1"	1"
Tweeter Type	Horn-Loaded	Horn-Loaded
Aimable Tweeter	No	No
Midrange Driver	6.5"	No
Crossover Frequency	280Hz and 2750Hz	2500Hz
Firing Direction	front	front
Physical Specs
Height	1170.0mm (46.1")	260.0mm (10.2")
Width	233.0mm (9.2")	582.0mm (22.9")
Depth	372.0mm (14.6")	381.0mm (15")
Weight	33.00kg (72.6lbs)	n/a
Enclosure	Bass Reflex	Bass Reflex
Grille	Yes	Yes
Moisture Resistancy	No	No
Connections
Biamp Inputs	Yes	n/a
Other
Parts Warranty	5 Years	5 Years
Labor Warranty	5 Years	5 Years

Verdict

Siblings in Triangle's Signature series, so they share a family sound. It comes down to size, output and price.

Area	Better	Why
Bass	A	Triangle Signature Delta digs deeper - 35Hz against 45Hz.
Amplifier needs	A	Triangle Signature Delta is more sensitive (92dB vs 90dB), so it goes louder on the same amplifier.
Headroom	A	Triangle Signature Delta takes more power (120W vs 90W) - more in hand in a big room.
Size	depends	Triangle Signature Gamma is easier to place; Triangle Signature Delta is bigger, which usually goes with fuller bass. Your room decides.
Type	depends	A Passive Floor-standing against a Passive Center Channel - a different job rather than a better one.
Expandability	A	Triangle Signature Delta: bi-amping.
Price	B	Triangle Signature Gamma is cheaper - $2,700 against $6,000, about 55% less; arguably a different class.

A Triangle Signature Delta B Triangle Signature Gamma
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

The usual trade-off: Triangle Signature Delta measures better, Triangle Signature Gamma costs about about 122% more% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 45Hz anyway, which makes the cheaper Triangle Signature Gamma much easier to justify. Match it to your room: we rate Triangle Signature Delta the better fit for a large room and a very large room, and Triangle Signature Gamma for a small room and a mid-size room.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.